Coating forming system for outer thermal insulation layer of continuous composite pipe and machining method of coating forming system

Abstract

The invention discloses a continuous composite pipe outer thermal insulation layer coating forming system which comprises a large disc support, a thermal insulation material support and a thermal insulation coating device, the large disc support and the thermal insulation material support are both arranged at an inlet of the front end of the thermal insulation coating device, a composite pipe reel is rotationally installed on the large disc support, a composite pipe is wound on the composite pipe reel, and the thermal insulation coating device is arranged on the composite pipe reel. At least two sets of heat preservation material reels are rotationally installed on the heat preservation material support, heat preservation materials are wound on the heat preservation material reels, a composite pipe channel for a composite pipe to pass through is formed in the upper portion of the heat preservation coating device, and at least two sets of heat preservation material channels for the heat preservation materials to pass through are arranged in the heat preservation coating device. The at least two sets of heat preservation material channels are sequentially communicated with the composite pipe channel according to the cladding sequence, and a traction machine is arranged at an outlet in the rear end of the heat preservation cladding device and connected with the composite pipe. The method has the advantages that the overall construction comprehensive cost can be reduced, and the site construction efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of composite pipe processing technology, and in particular to a system for forming an outer insulation layer of a continuous composite pipe and its processing method. Background Technology

[0002] To insulate pipelines transporting oil, gas, and water, one or more layers of insulation material are typically applied to the outside of the pipeline. Traditionally, this process involves on-site insulation application, with each section being laid and then covered sequentially. This makes continuous application impossible. Furthermore, limitations imposed by the surrounding environment contribute to the difficulty, high cost, low efficiency, and poor waterproofing effectiveness of the application work. Summary of the Invention

[0003] The purpose of this invention is to provide a system for forming an outer insulation layer of a continuous composite pipe and its processing method, thereby reducing the overall construction cost and improving on-site construction efficiency.

[0004] The above-mentioned technical objective of the present invention is achieved through the following technical solution: A system for coating and molding the outer insulation layer of a continuous composite pipe is characterized by comprising a large plate support, an insulation material support, and an insulation coating device. Both the large plate support and the insulation material support are located at the front inlet of the insulation coating device. A composite pipe reel is rotatably mounted on the large plate support, and a composite pipe is wound on the reel. At least two sets of insulation material reels are rotatably mounted on the insulation material support, and insulation material is wound on the reels. The upper part of the insulation coating device has a composite pipe channel for the composite pipe to pass through. The interior of the insulation coating device has at least two sets of insulation material channels for the insulation material to pass through. These at least two sets of insulation material channels are sequentially connected to the composite pipe channels according to the coating sequence. A traction machine is located at the rear outlet of the insulation coating device, and the traction machine is connected to the composite pipe.

[0005] Preferably, the ends of the insulation material are cut into a tapered shape.

[0006] Preferably, two sets of guide rollers are fixedly installed at the front end of the composite pipe channel on the heat insulation covering device, and the composite pipe is disposed between the two sets of guide rollers and rolls in contact with the two sets of guide rollers.

[0007] Preferably, each set of insulation material channels has multiple sets of guide rollers arranged sequentially at intervals along the corresponding direction of insulation material movement.

[0008] Preferably, the insulation covering device is provided with a forming sleeve at the connection between each set of insulation material channels and composite pipe channels, and the composite pipe and insulation material pass through the forming sleeve.

[0009] Preferably, a hot air gun is fixedly installed at the front end of each of the forming sleeves of the thermal insulation covering device, and the nozzle of the hot air gun is aimed at the joint of the thermal insulation material.

[0010] Preferably, the heat insulation covering device is further fixedly provided with a glue bucket valve at the front end of the forming sleeve. The glue bucket valve is connected to the glue bucket through a pipe, and the opening of the glue bucket valve is located above the pipe wall of the composite pipe.

[0011] A processing method for a continuous composite pipe external insulation layer coating molding system includes the following steps: The composite pipe and the insulation material are respectively wound around the corresponding large plate support and the insulation material support. The composite pipe is pulled out and sequentially inserted into the guide rollers and forming sleeve on the insulation and covering device, and then connected to the traction machine. The insulation material covering the innermost layer of the composite pipe is inserted into the insulation covering device through the insulation material channel, and the innermost layer of insulation material is tied to the binding point on the composite pipe located in front of the forming sleeve using tape, and the innermost layer of insulation material is then passed through the forming sleeve. The subsequent outer layer of insulation material is bundled with the composite pipe and then threaded through the shaped sleeve; Start the traction machine to move the composite pipe. At the same time, the composite pipe also moves the insulation material of each layer through the corresponding forming sleeve. At the same time, open the glue tank valve to let the glue flow evenly onto the pipe wall of the composite pipe. Adjust each set of hot air guns to ensure that the nozzle of the hot air gun is aimed at the joint of the insulation material. After the composite pipe is insulated, a layer of PE material is extruded and wrapped around the outer layer of the insulation material to form a PE protective outer layer. Trim the insulation layer and PE protective outer layer at both ends of the composite pipe, then put a glued reducing heat shrink sleeve on each of them. Use hot air to bond the glued reducing heat shrink sleeve to the PE protective outer layer and the composite pipe to complete the processing.

[0012] In summary, the present invention has the following beneficial effects: 1. This invention, through a continuous coating and molding process, can effectively reduce the overall construction cost and improve on-site construction efficiency.

[0013] 2. This invention achieves seamless connection of insulation materials through the combination of hot air gun and adhesive application, which increases the insulation effect of the composite pipe. At the same time, the subsequent application of adhesive-coated reducing heat shrink sleeves achieves good waterproofing, further enhancing the overall insulation effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the large-disc support structure of the present invention; Figure 2This is a schematic diagram of the thermal insulation material support structure of the present invention; Figure 3 This is a schematic diagram of the thermal insulation covering device of the present invention; Figure 4 This is a schematic diagram of the structure of the composite pipe of the present invention, which is fitted with adhesive-coated reducing heat shrink sleeves at both ends. Detailed Implementation

[0015] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. These embodiments do not constitute a limitation on the present invention.

[0016] like Figures 1 to 3 The system shown is for coating and forming a continuous composite pipe external insulation layer, including a large plate support 1, an insulation material support 2, and an insulation coating device 3. The large plate support 1 and the insulation material support 2 are both located at the front entrance of the insulation coating device 3. A composite pipe reel 11 is rotatably mounted on the large plate support 1, and a composite pipe 12 is wound on the composite pipe reel 11. At least two sets of insulation material reels 21 are rotatably mounted on the insulation material support 2, and insulation material 22 is wound on the insulation material reels 21. A composite pipe channel 31 for the composite pipe 12 to pass through is provided at the upper part of the insulation coating device 3. At least two sets of insulation material channels 32 for the insulation material 22 to pass through are respectively provided inside the insulation coating device 3. The at least two sets of insulation material channels 32 are connected to the composite pipe channels 31 in sequence according to the coating order. A traction machine is provided at the rear outlet of the insulation coating device 3, and the traction machine is connected to the composite pipe 12.

[0017] The ends of the insulation material 22 are cut into a cone shape to facilitate subsequent binding.

[0018] Two sets of guide rollers 33 are fixedly installed on the front end of the composite pipe channel 31 on the heat insulation covering device 3. The composite pipe 12 is placed between the two sets of guide rollers 33 and rolls and fits with the two sets of guide rollers 33 to achieve stable traction and covering of the composite pipe 12.

[0019] Multiple sets of guide rollers 34 are sequentially and spaced apart within each set of insulation material channels 32 along the movement direction of the corresponding insulation material 22.

[0020] The insulation covering device 3 is provided with a forming sleeve 35 at the connection between each set of insulation material channel 32 and composite pipe channel 31, and the composite pipe 12 and insulation material 22 pass through the forming sleeve 35.

[0021] Each heat insulation covering device 3 has a hot air gun 36 fixedly installed at the front end of each forming sleeve 35, with the nozzle of the hot air gun 36 aimed at the joint of the heat insulation material 22.

[0022] The heat insulation covering device 3 is also fixedly provided with a glue tank valve 37 at the front end of the forming sleeve 35. The glue tank valve 37 is connected to the glue tank through a pipe, and the opening of the glue tank valve 37 is located above the pipe wall of the composite pipe 12.

[0023] A processing method for an external insulation layer coating molding system for a continuous composite pipe 12 includes the following steps: The composite pipe 12 and the insulation material 22 are respectively wound around the corresponding large plate support 1 and insulation material support 2.

[0024] The composite tube 12 is pulled out and sequentially inserted into the guide roller 33 and the forming sleeve 35 on the heat insulation and covering device 3, and then connected to the traction machine.

[0025] The insulation material 22 covering the innermost layer of the composite pipe 12 is inserted into the insulation covering device 3 through the insulation material channel 32, and the innermost insulation material 22 is tied to the binding point on the composite pipe 12 located in front of the forming sleeve 35 using tape, and the innermost insulation material 22 is then passed through the forming sleeve 35.

[0026] The outer insulation material 22 and the composite pipe 12 are bundled together and threaded through the molded sleeve 35.

[0027] Start the traction machine to move the composite pipe 12. At the same time, the composite pipe 12 also moves the insulation material 22 of each layer through the corresponding forming sleeve 35. At the same time, open the glue tank valve 37 to let the glue flow evenly onto the pipe wall of the composite pipe 12. Adjust each set of hot air guns 36 to ensure that the nozzle of the hot air gun 36 is aimed at the joint of the insulation material 22.

[0028] After the composite pipe 12 is insulated, a layer of PE material is extruded and wrapped around the outer layer of the insulation material 22 to form a PE protective outer layer 5, achieving the effects of protection, wear resistance and waterproofing.

[0029] like Figure 4 As shown, the insulation layers and PE protective outer layer 5 at both ends of the composite pipe 12 are all trimmed, and then a glued reducing heat shrink sleeve 4 is put on each of them. The glued reducing heat shrink sleeve 4 is then bonded to the PE protective outer layer 5 and the composite pipe 12 by hot air to prevent groundwater from entering the insulation layer from the end and affecting the insulation effect. The processing is then complete.

[0030] This invention, through a continuous coating and molding process, can effectively reduce the overall construction cost and improve on-site construction efficiency.

[0031] This invention achieves seamless connection of insulation materials through the combination of hot air gun and adhesive application, increasing the insulation effect of the composite pipe. At the same time, the subsequent application of adhesive-coated reducing heat shrink sleeves achieves good waterproofing, further enhancing the overall insulation effect.

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art can make various modifications or equivalent substitutions to the present invention within the scope of its essence and protection. Such modifications or equivalent substitutions should also be considered to fall within the protection scope of the present invention.

Claims

1. A system for coating and molding the outer insulation layer of a continuous composite pipe, characterized in that, The device includes a large tray support, an insulation material support, and an insulation covering device. Both the large tray support and the insulation material support are located at the front inlet of the insulation covering device. A composite pipe reel is rotatably mounted on the large tray support, and a composite pipe is wound on the reel. At least two sets of insulation material reels are rotatably mounted on the insulation material support, and insulation material is wound on the reels. The upper part of the insulation covering device has a composite pipe channel for the composite pipe to pass through. The interior of the insulation covering device has at least two sets of insulation material channels for the insulation material to pass through. These at least two sets of insulation material channels are sequentially connected to the composite pipe channels according to the order of covering. A traction machine is located at the rear outlet of the insulation covering device, and the traction machine is connected to the composite pipe.

2. The system for coating and molding the outer insulation layer of a continuous composite pipe according to claim 1, characterized in that: The ends of the insulation material are cut into a tapered shape.

3. The system for coating and molding the outer insulation layer of a continuous composite pipe according to claim 1, characterized in that: Two sets of guide rollers are fixedly installed on the front end of the composite pipe channel on the heat insulation covering device. The composite pipe is arranged between the two sets of guide rollers and rolls in contact with the two sets of guide rollers.

4. The system for coating and molding the outer insulation layer of a continuous composite pipe according to claim 1, characterized in that: Multiple sets of guide rollers are sequentially and spaced apart within each group of insulation material channels, along the corresponding direction of insulation material movement.

5. The system for coating and molding the outer insulation layer of a continuous composite pipe according to claim 1, characterized in that: The insulation covering device is equipped with a forming sleeve at the connection between each set of insulation material channels and composite pipe channels, and the composite pipe and insulation material pass through the forming sleeve.

6. A system for coating and molding the outer insulation layer of a continuous composite pipe according to claim 5, characterized in that: Each heat insulation covering device has a hot air gun fixedly installed at the front end of each forming sleeve, with the nozzle of the hot air gun aimed at the joint of the heat insulation material.

7. A system for coating and molding the outer insulation layer of a continuous composite pipe according to claim 5, characterized in that: The heat insulation covering device is also fixedly provided with a glue bucket valve at the front end of the forming sleeve. The glue bucket valve is connected to the glue bucket through a pipe, and the opening of the glue bucket valve is located above the pipe wall of the composite pipe.

8. A processing method for a continuous composite pipe external insulation layer coating molding system according to any one of claims 1 to 7, characterized in that: Includes the following steps: The composite pipe and the insulation material are respectively wound around the corresponding large plate support and the insulation material support. The composite pipe is pulled out and sequentially inserted into the guide rollers and forming sleeve on the insulation and covering device, and then connected to the traction machine. The insulation material covering the innermost layer of the composite pipe is inserted into the insulation covering device through the insulation material channel, and the innermost insulation material is tied to the binding point on the composite pipe located in front of the forming sleeve using tape, and the innermost insulation material is then passed through the forming sleeve. The subsequent outer layer of insulation material is bundled with the composite pipe and then threaded through the shaped sleeve; Start the traction machine to move the composite pipe. At the same time, the composite pipe also moves the insulation material of each layer through the corresponding forming sleeve. At the same time, open the glue tank valve to let the glue flow evenly onto the pipe wall of the composite pipe. Adjust each set of hot air guns to ensure that the nozzle of the hot air gun is aimed at the joint of the insulation material. After the composite pipe is insulated, a layer of PE material is extruded and wrapped around the outer layer of the insulation material to form a PE protective outer layer. Trim the insulation layer and PE protective outer layer at both ends of the composite pipe, then put a glued reducing heat shrink sleeve on each of them. Use hot air to bond the glued reducing heat shrink sleeve to the PE protective outer layer and the composite pipe to complete the processing.

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